leinert



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E. LEINBRT. f APPARATUS POR CLOSING VESSELS, 65o.

Patented June 24, 1884.L

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' E. LEINERT.

APPARATUS POB. CLOSING VESSBLS, &c. No. 800,987. l Patented June 2.4',1884.

WITNESSES' '17' 5. INVENTQR aiiorney.

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f on the arms c to ew.

Darren drains ATENT trice.

APPARATUS FOR CLOSING VESSELS, &.C.

SPECIFICATION forming part of Letters Patent No. 300,987, dated June 24,1884.

Application tiled March 11, 1884.

To all whom, it may concern/f Be it known that I, EMIL LEINERT, of thecity of Dresden, in the Kingdom of Saxony and German Empire, haveinvented certain new and useful Improvements in Apparatus for ClosingVessels, Doors, and Such Like Air- Tight and other Objects, of which thefollowing is a specification.

My invention relates to improvements in apparatus for closing openingsand making the same air-tight.

Figure 1 shows a section of the apparatus arranged as closureV for avessel on line x a'. Fig. 2 is a plan view of the under side of theupper plate, with the headed arms in place, and with the under plate, b,and bolt c removed.' Fig. 3 is a top view of the lower plate of theapparatus. Fig. 4 shows the conibination of three apparatuses in arectangular cover. Fig. 5 is a section of Fig. el on the line l l ofFig. 4.

The apparatus consists of an upper plate, a,

lower plate,b, and bolt c, having a handle for connecting both plates.Between the upper plate, a, and the lower plate, b, are provided anysuitable number of packing-heads, g, each having an arm, c, or c, or ci,and so on, which are to be moved in radial directions, as will beexplained. Each of these arms c to el can be slid outward in radialdirection, guided by means of lugsZ on the bottom of the upper plate, a.The arms carry a number of teeth,

f, which are arranged in the form of a convo.-

lute thread. The heads r/ of thesearms are, in the present arrangementas shown vfor a vessel-closure, semicircularly hollowed out at w,whereas like cavities It are formed in corresponding parts ofthe-vessel. The spaces so formed serve to receive a packing-ring, d. Thelower plate, b, of corresponding form with the upper plate, a, carries aconvolute thread corresponding to the arrangement oi" the teeth The boltc, which connects the two plates to each other, is fixed in the lowerplate, b, and is movably arranged in the upper plate. If the plate b isturned by means of the handle of the bolt c to the right, the convolutethread on the lower plate, I), slides between the teeth of the arms fand compels the said arms e ew to move from the (No model.)

center outward. The ends or heads g press hereby equably on thepacking-ring whereby a perfectly air-tight closure is attained allaround the` upper edge of the vessel, but this invention is not onlyapplicable to vessels or packages which are round in horizontal section,for it is equally well adapted to square vessels or packages.

Three apparatuses can be combined side by side, as shown in Fig. 4. Thecenter apparatus, 17, carries a right-hand spiral thread. The right andleft hand apparatus, k and l, carry on the other hand a left-handthread. The spiral is in this case cut or milled into each of the upperplates, i 7,: Z, and the edge of each of these plates is toothed. Thecentral plate, fi, is firmly connected to the bolt c, as shown in Fig.4. A number of bolts or arms are arranged to slide in the guides a onthe lower square plate, A. The bolts m and nf are arranged radial to acircular plate, z', five bolts, m2 m m" onf m, radial to the one sideplate, five bolts,

ms m m10 m m12 radial to the other side Jlate.

l 7 .7 rllhese bolts m to fm1 are provided with teeth j', which arespirally arranged in correspond ence with the ai'orenamed spirals. Ifthe center plate, i, is turned to the right by meansof the handle to theiixed bolt c, not only the rst Aiive bolts, m to on?, are moved from thecenter outward, but the rotary movement or" the plate i is transferredto the side plates, k and Z, so that the same are moved to the left, andin consequence of the left-hand arrangement of the spirals thecorresponding bolts moved from the center outward. rlhe bolts catch inthe rim a of the frame o, and connect in this manner the plate a withthe frame 0. In this manner it is possible to close openings of anydesired section by adapting one or a combination ol several apparatusesto the same.

Having now described my said invention, what I claim, and desire tosecure by Letters Patent, is-

l.. rIhe combination, with a vessel, of arms which are constructed withheads on their outer ends, and radially movable between guides Z, theupper plate, a, the lower plate, b, constructed with a convolute threadengaging with teeth on said radial arms, the bolt c, iixed to the lowerplate, b, and a packing, all

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.constructed and adapted to operate substantially as described.

2. rllhe combination, with the cover of a Vessel, of radial1y-movablearms, guided as described, and having grooved heads, a pack* ing fittedinto the outer ends of these heads and into a groove formed inside oi'the vessel, a bottom plate provided with a convolute threadon its upperside engaging with teeth on said arnis, and a turning-bolt, c, rigidlyconnected to said plate7 substantially as described. v

3. The combination of radially-movable

